FRAME SIZE (MM) 52 19 37 141 Frame size: Medium · View Size Guide
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Try Frame on Your FaceThe Ashworth Essential Rimless Eyeglasses are designed for wearers who prefer understated eyewear with a refined contemporary character. The rimless construction creates a clean, lightweight visual profile, while the structured rectangular lens shape adds subtle definition to the overall look.
With its minimalist architecture and versatile styling, Ashworth Essential transitions effortlessly between professional environments, everyday routines and smart-casual occasions. The unobtrusive design keeps attention on the wearer while providing a practical platform for prescription lenses.
Ashworth Essential focuses on simplicity without sacrificing sophistication. The rimless construction keeps the eyewear visually discreet, while the rectangular profile adds a subtle structured character that works across a variety of personal styles.
Its timeless design makes it an excellent everyday choice for anyone looking for prescription eyewear that complements rather than dominates their appearance.
The lightweight construction and adjustable nose pads are designed to support a comfortable everyday wearing experience. The rimless format keeps the overall visual profile streamlined while providing a practical foundation for prescription lenses.
Nations Optics combines timeless eyewear silhouettes with contemporary optical design to create frames suited to modern everyday lifestyles. Our collection focuses on style, versatility and practical prescription compatibility.
Pair your Ashworth Essential eyeglasses with the lens option that best matches your prescription, visual requirements and daily routine.
| Color | Black |
|---|---|
| Glasses Size | Medium |
| Eyewear Type | Rimless |
| Eyewear Shape | Rectangular |
| Front Rim Material | Carbon Fiber |
| Temple Material | Acetate |
| Size In MM | 52-19-37-141 Size Guide |
| Est. Wt. Grams(incl. Glasses) | 19.30 |
Rimless frames require holes drilled directly into the lens to attach the frame. Regular lenses can easily crack or shatter at these drill points, which could be unsafe for your eyes.
Polycarbonate lenses are 10x more impact resistant than standard lenses — they won't crack during drilling or from accidental drops. They're virtually unbreakable and lightweight.
We use them for rimless frames purely for your safety and lens longevity — so you never have to worry about cracked or broken lenses.
Frame quality
Every frame listed on our website passes a thorough quality check before it goes live. We inspect, measure, and verify each model — so the specs you see on the product page are exactly the specs you receive.
What we check on every frame
Hinges are tested for flex strength and snap-back precision. Only frames meeting minimum flex cycle standards are listed.
Flex testedNose pads are checked for material finish, grip texture, and secure attachment — ensuring all-day comfort without slipping.
Comfort verifiedMetal frames are verified for alloy grade, finish uniformity, and resistance to corrosion and bending under normal use.
Grade verifiedSheet frames are inspected for surface clarity, colour consistency, and resistance to warping or surface cracking.
Material inspectedLens width, bridge width, and temple length are physically measured in mm and verified against the product page listing.
mm accurateEach frame's weight is measured on a precision scale and listed on the product page — so you know exactly what to expect.
Gram accurateIf you receive a frame that does not match the listed specifications — in material, size, or weight — we will replace it or refund you in full within 10 days of delivery. No arguments, no hassle.
Frequently asked
Rimless eyewear
Yes — and it is easier than you think. Nations Optics offers a free custom lens shape selector on every polycarbonate lens product page, built specifically for rimless frame wearers.
Rimless frames require holes to be drilled directly into the lens to hold the frame in place. Standard lens materials can crack or shatter at these drill points — which is why Nations Optics exclusively uses polycarbonate lenses for all rimless frames. Polycarbonate is 10x more impact resistant than regular lenses, virtually unbreakable, and handles precision drilling without weakening — keeping your eyes safe and your lenses lasting longer.
When you order a polycarbonate lens on any product page, you will see a "Choose Lens Shape" button. Select the shape that matches your rimless frame — Aviator, Butterfly, Rectangular, Oval, Square, and more — and our team will precision-cut your lenses to fit that exact shape. If your order also includes a rimless frame from our collection, the same shape is automatically applied and fitted for you.
Why polycarbonate only
Rimless frames require drilling directly into the lens. Only polycarbonate can handle this without cracking — keeping your lenses safe and durable.
Where to find it
On every polycarbonate lens product page, tap "+ Choose Lens Shape" before adding to cart. Pick your shape and we handle the rest.
No extra charge
Custom lens shape cutting is included at no additional cost. The price you see is the price you pay — shape selection is completely free.
Select your shape on the product page. If your order includes a rimless frame, the same shape is precision-cut and fitted directly into your frame before dispatch — all included in your order price.